Florida Cosmetology Licensing ExamChemical ServicesMedium
A cosmetologist is performing a chemical relaxer service on a client with very tight, resistant curls. To ensure the hair is sufficiently relaxed without over-processing, which test should the cosmetologist perform during the processing time?
- AA patch test
- BA strand test for elasticity
- CAn 'S' pattern test
- DA porosity test
Show answer & explanationAnswer & explanation
Correct answer: C. An 'S' pattern test
The 'S' pattern test is specifically used during a chemical relaxer service to determine if the hair has been sufficiently relaxed. A small section of hair is gently pushed up, and if it forms an 'S' shape, it indicates adequate relaxation.
Why the other options are wrong
- A. A patch test (predisposition test) is performed 24-48 hours before the service to check for allergic reactions, not during processing.
- B. A strand test for elasticity is done before the service to determine hair's strength and health, not to check for relaxation during processing.
- D. A porosity test is performed before the service to assess hair's absorption, not during processing for relaxation.
Relaxer 'S' Pattern Test
A test performed during a chemical relaxer service where a small section of hair is gently pushed up with the back of a comb to check if it forms an 'S' shape, indicating sufficient relaxation.
- Indicates adequate bond breakage and straightening.
- Prevents over-processing, which can lead to damage.
- Performed periodically throughout the processing time.
Memory trick: To see if the curl makes an 'S', you 'S'imply 'S'queeze and 'S'ee the 'S'hape of success.